Add examples for getting data from a database for metric calculation #24
Description
Is your feature request related to a problem? Please describe.
Provide examples for getting data from a database (or Excel) and then calculating the BIBI and FIBI.
Describe the solution you'd like
Another Vignette but also include in the README.
Describe alternatives you've considered
Work with a flat table as well as get from a database query.
Additional context
Need to include the required fields.